Carbureter.



T. J. GROTT.

ARBURETER.

APPLICATION :FILED APB. 1e. 1909.

Patented Mar. 1, 1910.

iii'

THOMAS J. enorm, or mcHM'oND- Ernia, NEW YORK.

cannunn'rnn."

Specification of Letters Patent.

. Patented Mar. 1, 1910.

'Appiicauon inea Api-i1 1s, 19'09. serial NOI/190,312.

To all whom it may concern:

Be it known that I, THOMAS J. Gnorr, a citizen .of the United States,- residingA at lichmond Hill, in the county of Queens and btate of N ew York, have invented certain .new and useful Improvementsv iii Carbuvreters,' of which the following is a specication.

-This invention relates to carbureters forv explosive engines and has for itsA object to provide an improved carburetor by means of which kerosenev or oth'erffuel is automatic,-

ally' released from a primary chamber and a' main supply reservoir and drawn into 'a mixing chamber by the suction of air drawn from the mixing chamber into the en" e when` it is started and while it is running.l and also by means of which the flow of oil from the reservoirs is automatically cut oil by the stopping of the engine.l

The invention further has for its object to provide an improved carbureter by means of which flooding of the oil or other fuel is prevented and a complete vaporizing of the fuel obtained. i 7

Other objects and advantages will be apparent from the following description, and it will be understood that changes in the specific structure shown and described may be made within the scope of the claims witliout departing from the spirit of theinven tion.

In the drawings forming a portion of this i specication, and in which like numerals of reference indicate similar parts 1n the several views, Figure 1`1s a view 1n elevation and in vertical y section vof a carbureter constructed. in accordanceV with this invention,

F ig. 2 is a horizontal' sectional view centrally-of the device looking downward, Fig; 3 is a vertical section at rightangles to Fig. l, Fig. 4 is a detail section of the lower portion of the carbureter. s

lThe carbureter constructed in accordance with this invention comprises a cylinder 1, serving as the mixing Vchamber and formed with the opening 2 at one side for the passage of the mixture of air and o il to the engine, and 'with the iange connection 3 for securing the carbureter to the engine. The top of the cylinder 1 is closed by a suitable cover 4 screwed thereon, .or secpred'thereto in any other suitable manner. Preferably secured to one side of the cylinder 1, in any suitable manner is a reservoir or prim- `,ing chamber 5 to contain kerosene, gasolene,

veyed from the .primingreservoir to the i cylinder 1 by means of 4the pipe 6, connected at one end with the bottom of the resei-,

voir 5 and communicating with an vopening 7 therein, andconnected at the other end lwith the cylinder 1, the pipe 6 extending yertically up through the bottom of the cyl- Inder 1,' and to the top of a hollow cone 8 secured to the bottom of the cylinder 1.

Between the top of the cone 8 and the end of the pipe 6 is a circumferential opening 9 and in the bottom of the cylinder 1 are.

a number of air inletppenings 10 arranged in acircle and opening into the lower end of the hollow cone 8. By means of the foregoing construction air may pass up through the cone and out of the circumferentiall opening 9 Into .the mixing chamber. To control the admissionof oil or gas, and air into the .mixing chamber, a ball valve 1l is provided which is seated on the top of the pipe 6 Yand the cone 8, the end of the pipe 6 being 'made' concave as at 12, to adapt the ball valve 11 to beseated thereon andclose the pipe 6,. and the circui'iferential opening 9.

The ball valve 1l is limited in itsupward movement by a rod 13 connected at one end thereto and extending '.up into a sleeve or guide 14; depending from the cover 4. The` ball valve 11 is yieldingly held against the` end of the pipe 6 by means of a tension spring 15 encircling the rod 13 and connected at one end to thevalve lland at the other end to the lower end of the sleeve 14.

p The upward movement of .the valve 1 1 may be regulated by the adjustingscrew 16, screwing into the sleeve 14;, and against whichv the up er end ofthe rod 13 strikes. The bottom o the cylinder 1 is also provided with' a number of air inlet openings 17, arranged in a circle about the cone 8, in addition to the air inlet openings 10. The opening 7 in the bot-tom of the primary oil reservoir 5 isclosed by a ball valve 18 on the lowerend of a stem or rod 19 extending through is mounted on the short arm 24 of a bell` ioo .a cross guide bar 20 in the chamber 5 and 4 ceases and the valvel 22 is instantly raised to normal position by means of the reaction crank lever 25 hinged to a rod 26 having its endscsecured to the sides of the cylinder 1, the lone arm'27 of the bell crank lever 25 extending through av slot 28 in the side of the cylinder 1 andbeing hinged at its outer' end to the upper end of the stem or rod 19. The valve 22 is held up in. a horizontal position by means cfa coiled spring 29 encircling and secured at its lower end to the sleeve 14, and in this position of the valve 22, the valve` 18 is held down against the opening 7 The valve 18 not only closes the opening 7, but also a passageway 30 connecting the end of the pipe 6 with a,

branch pipe 31. connecting with a main liquid fuell supply reservoir. The priming chamber 5 may be filled with kerosene or other liquid hydrocarbon through an openn ing 32 in the top of the chamber 5 closed by a cover 33. y y v The operation of the carbureter/is as follows: When the engine is started the suction of air from the cylinder 1 throughthe opening 2 into the engine by the action of the latter, drawsdown the valve 22 against the, tension of the spring 29 compressing the latter and thereby through the bell crank lever 25 and the rod 19 lifts the ball valve '18 and uncloses the opening 7 and passageway 30.' The suction in the cylinder 1 causes the kerosene to tlow from the priming res? ervoir 5 and to be drawn through the pipe 6 -and sucked from beneath .the ball valve 11v f A ,plete mixture of the oil and air.

fstruction and arrangement of the' end of the pipe 6, the cone 8, and the ball valve 11 'into themixing chamber 1v and commingle with the air drawn up through the cone 8l and to be discharged in the forni of ay ring y into the mixing chamber. The-air drawn upA throu 'li the openings 17 111 the bottoni of the cy inder 1, cooperates with the comf mingled oilV and airl entering the mixing chamber. beneath the valve 11 tovformgacom- The conyieldingly rtingthereon permits of a partial vaporization of the liquid hydro-carbon es' it is admitted to the lmixing chamber.

The iifaag of ai@ bail wave is in ai@ boti beneath the ball V q tom of the priming chamber 5 un'closes the passageway 30 and permits oil or other fuel to bcdrawn from the main fuel supply resl ervoir through the gipe 131, and pipe 6 and ave 11 into the mixing chamber '11". When the engine is stopped, the

v'suction'. of air from the mixing chamber i' lioiviof oil tothe mixing chamber Ais automatic-ally checked andflooding is prevented.4

By means of this inventionfa carbureter n and `Iiassagewtqf 30, thereby shut-l l is provided which is light and simple in con- .h accomplished in an eiieient manner.

To throttle the passage ot air through the device, there is an interior casing 35 revoluble within the cylinder 1', and its base hai-'- ing openings 38 adapted to register at times with the o enings 17 in the base of the .cylinder, an its wall having openings 36 adapted'to registerl at times `with openings 37 formed in the cylinder 1. "An opening 39 is also formed through the Wall of the casing 35 adapted to register with thev passage 2, and arranged to restrict the entrance to said passage at times, though it will be understood that it' desired this opening may be so enlarged that no restriction will occur.

casing 5, by means ot" a stem 41 as shown in Fig. The arm l0 may be either manipulated manilally or by means ot suitable operative `connections engaged with the opcunoted that' openings 23 are i'ornied in the cover to allow the entrance of air above the valve 22 to facilitate its operation.

. .It should be explained that the purpose ol the supplementary reservoir 5 is to supply an adequate amount of gasolene to the mixing chamber when starting an engine. At the start, the device being usually turned by hand themovement is slow, and consequently the vacuum created in the mixing` chamber is slight and may not be suliicicnlzto draw a sufficient quantity of gasolene thereinto. By the provision of the reservoir ing at the extremity thereof. It will be also Y ioo 5 with a sufiicient quantity of gasolene, the

minute the rod 19 is lifted, gasolene will flow ity,` independently of the vacuum created in l the mixing chamber.

What is claimed is:

1. In a carbureter for explosive engines,

a mixing chamber, a vertical lhollow cone, with an` open upper end mounted on the bot-tom of said chamber, and having a number of air inletopenings inthe bottom olisaid cone, an oil supply pipe projecting up through the bottom of said chamber and to the top of the cone and having a circular airspace between the top of the cone and the top of the pipe, and a ball valve seated on the top of said cone, and pipe.-

-2. In a carbureter for explosive engines, a n'iixing chamber, a vertical hollow cone witlian open top mounted on the bottom of said chamber, a number of air inlet open ings being formed adjacent the base of ysaid cone, an oil supply pipe projecting up through 1the bottom-of said chamber and to ,the top ofthe cone, and having a circular into the carbureter under the action of gravl air space between the top of the cone 'and the top-of the pipe, a ball valve 'seatedon y tion anfl'means for adjusting the opening movement of 'the valve.

3. A carbureter for explosive engines, comprising. a mixing chamber having `a number of air inlet openings in its bottom, a hollow cone with an upper open end mounted over a' portion of said openings, a primary vreservoir having an opening in its bottom, an oil supply pipe connected with said opening extending to 'the mixing chamber and up through its bottom to the top of the cone, a circular air passage being formed between the. top ot' the conc and the enel ofthe pipe` 'a ball Valve seated on the top ot' sail conc and pipe, a valve closing the openings in the'priming reservoir and the oil supply pipo, an air actuated valve.

. located in the mixingchamber and a connec tion between `said valve and the priming reservoir valve to allovtT 'the suction of air from' the mixing chamber to act on-the Valve in the mixing chamber to open the valve in the primaryreservoir, and to auto! matieally close the latter valve when the engine stops.

4. In -a carbureter for explosive engines, a mixing. chamber, a hollow cone With an open top located in. thebottom of said mix'- ing chamber,l air inlets in the bottom of said cone, an oil supply pipe `projecting up into in presence ,o

said cone, -to its top and forming a circumerential .air space between it. and the conc, a ball ,valve seated on said cone and pipe, a depending guide in the `top of the mixing chamber, a stem on the ball valve having its upper end projecting into said guide, a retracting spring mounted on the ball valve and its stem andY a set screw in said guide for limiting the opening movement. of the ball valve.

In a carbureterv for explosive engines,

a mixing chamber adaptedto be secured to anengi'ne and supply a vaporized mixture thereto', ahinged air actuated valve located in said mixing chamber, and having a lever arm projecting through the vside .of said chamber, apriming reservoir 'secured to thc `side of theA mixing chamber and having an oil 'outlet opening :in its bottom,'a valve closing said' opening and mounted on the lower endrof 'a stem extending up through the top of the'priining chamber and hinged to the lever arm of the air valve, said air valve being. acted upon by suction o't the air from the mixing chamber by the engine to open the priming reservoir valve, and automatically actingc to close the latter valve when the enginestops.

In testimon whereof I affix my signature,

two Witnesses. I THOLLXS J. GROTT. vlVitnesses zo.

WILLIAM C. SCHMIDT, SAMUEL D. VAN ilos'ramn. 

